Vivid Production of Fire.—Take three parts by weight of flowers of sulphur, and eight parts of copper filings, mix them intimately together, and put the mixture into a large test-tube, or small glass matrass. If the tube be now placed upon red-hot coals, the mass begins to swell, and a small ignited spark becomes first visible at the bottom, which rapidly increases in size, and lastly, the whole mass glows and exhibits a brilliant combustion without the access of air or oxygen gas.
The Fiery Flash.—Pour iron filings upon the flame of a candle, from a sheet of paper, about eight or ten inches above it; as they descend into the flame, they will enter into a very vivid scintillating combustion.
Spirits of Wine.—Put a small quantity of spirits of wine into a glass, and put a halfpenny or shilling in with it; then direct the rays of the sun, by means of a burning glass, upon the coin, and in a short time it will become so hot as to inflame the spirits.
Enigmas.
ANSWERS TO ENIGMAS IN JANUARY NUMBER.
1. Inside. 2. Air. 3. Mal-ice.